Periscope



1,529,254 J. HUMBRECHT PERIscoPE i Filed Aug- 23. 1921 3 She'etS-S-heet- 1 Inventor:

J. HUMBRECHT Marchy l0, 1925- PERIscoPE Filed Aug. 23, 1921 3 SheetsfSheet 2 v zig-J@ March l0, 1925 J. HUMBRECHT PERISGOPE Filed Aug. 23, 1921 5 snqets-sheet s Inventor:

Mn AWM Pa'tented'Mar. I, 1925.r

UNITED s"ln'ras,

PATENT;foFF1c;e.

JULES HUMBRECHT, or FMEDENAU. yNEAR :esaurienti/Leny, AssrGNoRTo 11H13.'

NEAR BERLIN, GERMANY.

FIRM 'or oPTIsCHE .ANSTALT lr.; I'Gonna AKTIENGESELLSCHAFT,on FRrEnENAu,

. r.Pnnrsoorn.

Application/med Agufstl'aa 192i. 'serial No. 494,495. (GRANTED UNDER THE PROVISIONS or THE ACT- on MARCH 3, 1921, 4 1'fs'TiA'r. 'IL., 131af.)`f

To all 107mm, lit may concern.' f

Be it known that it, JULES HUWBRECHT, a citizen of the German Republic, andre'sident of Friedenau, near Berlin, Germany, have invented `certain new and useful Ilmprovements in and Relating Ato Peris'copes (for which I have vfiled patent appli-cations in Germany, filed September ll, 1'916; Germany, iiled March 28, 1919; Hungary, `filed June 4, 1917; Austria, filedv February 49, 1918,' F rance,ffil=ed Tune 1T, 1920; Holl-and, filed June 28,1920; Great Britain, filed July 2 1920; Great Britain, filed Julyv 10,

1920; Italy, led JulyB, 1920; Japan,-

filed December 29, 1920), of which the following is a specification. f

Thisinvention relates toperiscopes off lthe kin-d which pull-out andat the same time rotate and in which lthe leyepiece which' does not participtate in the pull-outmove ment is mounted in a casing enclosing the periscope and is rotatablevvith the same.

The invention has `for its 'object to de sign the instrument in such a manner that the periscop'e canbe moved in the longitudi4 c nal direction bymeans of a motor mounted in a fixed manner in the boat outside ,thev

rotary movement affecting each other. This `con'stri'iction of' the instrument is of imi-` p'ortance, because the arrangement of the motor in the rotary instrument casing y'itself is attended bygrea't difficulties, more particularly von account of unreliable supply of current to the motor, and the difficulty of adapting the motor dimensions to the casing spaceavailable.v

According to the invention, independence of the pull-out movement from therota-ry movement of the instrument isv ensuredby la special construction of the gearing coupled to the dri ring'shaft `of the motor. The condition for the independenceof the two kinds of motion to be given to the instrument'l is that Vthe coupling of the driving shaft to the elevating member should be effected by,

`meansof gear Wheels loosely mounted on the latter, and that the proper drive shouldl be obtained only from the said gear wheels mounted loose on the elevating'member con'-.V

trolling the pull-out movement of the periseope, the said gear wheels transmitting f vation.

on the elevating member. f

The invention is preferablyfapplicable to periscopesfof large dimensionswhich have the seat for the observer fixed tothe l'casmg of the instrument. vIn order to allow their motion to othergearhvvheelsinounted y they observer to control the' movements fof-y the mstrument romhrs seat with'ou'tlbeing troubled in observation, the handles'i'or con'- Therefore, for the switches 'exists tliesame difficulty as 'forthe l coupling of the fixed motor with the mov`r` able periscope. In accordance with .a further part of this 'Inventionftlns difiicu-lty 1s ,overcome by a "driving'ge'ar similar to that which is applied foi-"coupling the motor Y witli the periscope. l Y y l In orderth'at the invention mayloennd'er-f` stood, la vdetailed arrangement of gearing according'thereto is shown inthe 'accompany ing drawing,byf\vay"of example, anjdl'nwill' Vnow loe described.` V

Figure l illustrates the'fcoupling of'a motor shaft with the'fperifscope inside lelevat'i'on. vFigure 2`i's laview""similar'l Ato Figure' l showiiig an axial section partly in fele Figure 3 tric device, for rotating the peri'scopes or shifting its telescopic "tube from a'se'at ot* periscope casing,

shows in"-axialf'sectionV a gearing for actuating a switch for an elec#k the observer firmlymounted on the rotatable...

a portion of "the periscope being shown in side elevation. Fig-vure 4 shows likewise in axial Vsection vanother form of' geari'ngvfor switches for twofactw at1ngclev1ces,one for aXial's-hifting of4 the telescopio tubeand the other for -ro'tation ofthe rotatable casing' withthe telescopic tube, a lportion of the perisc'ope being showfn r in side elevation.

rThe pull-out perisc'opeftubeis marked il` V in'Figs. l and 2 ofthe drawings. It lis.,

mounted in a rotatable casingf2 which does fz A lo; n andi-is supported by afixed bed' in the body n; 1

not participate in the pull-'out movement of the boat. The motor's'liaftg entersfrom the yside intothef interi'onoffv the bed and hasv coupled Ithereto a driving sha`ft 5,;wliich, according to tliedrawmg, 1s constlt-uted"loy`l i a .vertie'al'pinl At rightangles -to the driv- Vi'ng shafti isthe elevating shaft 6 carrymg sproeketwheels? which,.by means of lendless chainsvr 9 passing .over sprocket 7wheels 8 and Y 'a balancefbeam. 10,` transmit 1. their'Y motion to the periscope 1'. "'Io the i 'journal of the driving .shaft 5 vfis. secured a'gearvW- heel11 meshingvwith a gear wheel `12 mounted looselyjon the elevating shaft 6. The bed 3 is provided with a toothed rimv 13 with which engages a `second gear. wheel 14 -mounted loosely onthe elevating spindle 6, at the opposite sidey of the driving spindle `6 and intersecting the same. 21 is -the stationary angular eye-piece'of the instrument, and 22 `a ydeflecting prism. partici- V patinginl the pull-.out movement.

The use of he 'instrument and the work- When apulloutimovement is to beeffected, the driving shaft -5 is rotated. The gear wheel 11 mounted on the'said Vdriving shaft, transmits thenl itsmotion to the gear wheel 12- so that jthelatter rotates" about theel@ vating spindle 6'. During this rotation, the

' lgear wheel 12 has thetendency to impart a' f roerymotion tothe seal" Wheals' 175 18 f which however is Prevented by" the! resist" i* anoeof the gear wheel 14 rwhich engages the 1 fiXedteeth-13fof the bed 3. Itis important that the engagement of the gear wheel 14 6 withthe axlejournals `19, v2O carrying the gear wheelsll?, 18. A vertical movement of i with the 'teeth 13 shouldlbe exactly opposite to. that of the gear wheel 12 withthe gear wheel 11, owingtofwhichany rotary veffect onthecasing 2-isv avoided. In the condition 1describedtwtherotation 'of the' gear wheel- 12j-results, in a manner usual in dierentia'l gears, ina rotation of the elevatingl spindle ithe 'periscoperis therefore'produced by means lofthe chains 9 and ofthe balance beam 10.

Yhen, withthe driving shaft. 5 standing still." it is desired to turnthe casing, the

working ofthe gearing will `be as follows: Duringthe rotation ofthe kcasing v2, the

i 'i wheel 14 krolls' on the toothed rim 13 of the l.bed 3.5 Atthe'sametime, the wheel 12 rolls on'v the teeth ofthe gear wheel 11,.thisroll takingpla'ce`-v in the rreverse direction vowing to thelpo-ints ofengagement of the` -it'eeth'being opposite each other.

numbers yof teeth ofv thev wheels "-11, .12' or 1Q4--are suitably calculated', thel gear lwheelsgl?, 18,-co1'1`ld'be madefto rotate'on.

If the their journals 19, 20'without the latterfmovingli'n space. The proportion between the numbers of teeth to be usedis such` thatthe number of teeth ofthe gear ywheel-12f`must be in the same proportion to that of the gear wheel 11, as the number ofteeth of the gearlwheel 14 tojjthatof the toothedfrim 13,1pro` -vided that the toothed rims I15, 16 have the same number ofteeth, forjwhiohcare must Provided that the numbers of teethfof ,the gear vvwheels `in engagementhave.. Y

vbeen calculated in accordance with the above.

rule, the rotation of the casing 2 does'not aect, therefore, in anyway 'theelevating spindle.y It follows therefrom thatv in thev same way fthe casing can be rotated,whilst a vertical movement ,ofthe instrument yis v beingbrought-about by the rotation ofthe 89 motor shaft y 4.

' Instead of utilizingthespindle' carrying 'i the gear wheels 12, 14 direct as'the elevating spindle on` which are mounted thesprocket wheelsv 7,k the elevating spindle with the sprocket wheels coulda1sobe`mounted out# sidethejgearbody, and the toothed ,wheels i I 17,18 in a ring surrounding it, which being formed vinto a gear wheel, -is utilized;l forl 'i 'driving the elevating spindle.-r

In Figs. 3 and 4 the numeral v2 designates again a part, of a rotatable periscope casing provided with a fixed eye-piece'21. A little 1 y y i above the eye-piece 21 is mounted laterally" of lthe reduced periscope body the clutch,

gear,'the. lever 23 of which is within reach of the observer.l The clutch lever 23forms` the spindle ofl the planetary wher-,124 of av y planetary wheel gear, the two wheels of which, .rotating in opposite directions, are marked 25, 26. lThe wheel 25 is secured tothe spindle y27rotatably supported in a casing pro-' y' `jection 28. To thefspindle 27- is secured a spur wheel 29, whilst ano-ther spur` wheel v wheel 26 rotatable about the lspindle 27.

30 is made in one piece with` the toothed The lspur wheel 29 .y engages with outer'. teeth 31 of a rotatable toothed rim 32er-` ranged round the periscope and meshing, by

means of a toothedquadrant 33, with apin* ion34v on the 'spindle 35 of the motor switch -f f 36. Electricr cables "forthe motor are f marked 37, the motor itself'not being shown in thefdrawing.v o v The` spur wheel 30 'engages with' inner teeth 38 of afixedcasing part 39 enelosing the periscope.

' The'working ofv the device v'is yas follows:

Assuming vthat the observer at the eye-piece 2 1 wishes toturn theperisoope in' order to.` changehls directionof sight. I-Ie seizes the cluteh lever 23 andgives it,`and therefore at the same time the planetary Wheel ,24, ,a

swinging move-ment about the spindle27 .of

Duringl this,

the lplanetary wheel. gear.

movement, the `planetary .wheel 24 engages: with `the teeth of the bevel Whse-126 which is g positively connected to thetoothed"rim'38 ofthe fixed casingl partf39..y kAs ythe fixed arrangement of lthe Itoothed rim 38.*,.d`oes not the rotatable toot-'hed rim 32 and therefore imparts to it a rotation which re'Su'lts in 'a turningr of the switch spindle 35. This turning or the switch vspindle produces a switching` in of the` motor which engages in a suitii'ble manner with the perisoope casing and rotates it. Aesoon as the' hand levei 23 has Stopped, the toothed `rim B'ill aloostop, but the motor will remain Switched in. and the perisoope will continueits rotating movement. The aotionl or" the Xed toothed rims 3l and 38, and or therevolving inove-- ment vor the gear epindle 27 aboutthe, axis'- oi the perisoo'pe, will produee a Arotatiori of the spur wheels 29 and '30 which, to their engagement. at opposite aide with the toothed rims, will take plaeerin opposite directions. The` result of this will be that the bevel wheels 25,26 ywill tendfto rotate the planet-ary wheel 21t- `in the Same direction. The ratio of traiismiseion the various toothed wheels oft the gear lie eo ealculated that the wheels` 25, 26 impart the saine rotar'vimpulee to `the wh'e'e'lf24l5'so lthat no planetary movement of the said wheel will then take place. According `to the tent of turningbver ott-he lever -23,a more oi' less-quick rotation ofthe p-'e'ris'co-'pe will be produced, the Switch being' Vso e'onsti'ueted that depending from the degree of rot-ation of the shaft 35 the motor is'supplied with more vor less elect-ric energjv and Consequently `.rotates the instrument with I norev or less rapidity. Then the pieriecope is'to `loe stopped, the handle 23 is returned yto' its.

position ot rest.

The switch 36 mustbe .assumed to be so arranged that the direction of rotation of l the periscope is revereed, when the lever 23 is turned over 'to the oppo-site'side.

vThe same arrangement as'thatdescribed in the foregoing for producing'a rot-ation ot the periscope, could also be used toria pullout movement. f

In `a, periscope which is to 'be Simultaneously rotatal leand pull out, the "de'vijee' shown in Fig. 8 of the drawingon the vlett hand Side of the pel'f'iscope, is :arranged also on the right hand vSideo-f the Same, so that the `observer has both on hisfle'l't and on'jhie right a clutch lever 23 for' operating; a motor drive. 'The fixed teeth 38 'could also he utilized at the same'tiinelfor the gearonthe right hand side or thelperi's'cope, 'whiletthe switch fofand the rotatable toothed y"riinl 3]. have to beprovided Separateljr for ea'clibf the two drives.

lnlth'e oaeea periseope which Shouldbe iwheel 30 "and it thersaiiietiiii'e i-'tatableaiiti rpfiinieiib, the

two planetary 'wheel controlf-ears oould also be combined, so that affeingle` level" trols,` the lever for throwing" into gear-the two kinds or 'd'rlvesbeing moved in three. tions crossing-'each other." .i f

Sueh an arrangement 4is illu's'trateclvin- Fig.

4 'of the drawing. Those partent' the device which ali'etoi be 'found also lin the construe'- tion shown in 3, aire lInarlsed with the` saine' 'reference ndrnbers asjin F ig. y3,;ev'-en't`ually with the' addition of an index; 'abco'rd'ingly the pe'risco'pe, 21 'the `eye-piece,v` 23fthe'clutchlever, 24an`d 2-buthe planetary- H y Wheels) for throwing into gear the ,rotary 1 and the pudl-'out driv'e 'each oftheeetwo planetary wheels 24a and 24h fis 'iii mesh with the Wheels 25?;` 26a, 25h, 2617,' respectively. The wheels 25a, 26, 25h; 26b are-all mounted onone 'spindle 27. 28 is 'ag-ain teasing-pre1 jectionof the p'eri's'cope, in which is nion'ntgagging 'with the-two ySets vofy "teeth Bla 'or 313 of 'movable `toothed "rimelBQ-n foi; 32h. 30 is also aep'ur iyiieeivmeunted 'en' the, spindle l. 27aiidengag1ng Waththe inner "teeth 38er the fixed 'casing' part `39. 33@ and' 381 'are twotoothed quadr'ants of ithe movable.l

switches 86n or 36h, thepwires from; which loo to the motors driving'tle periScopeai-e- 1 marke-d 37a or 37b. 40 is fan llinterrnedi'afte wheel in the planetary `ywheel `gear',"and i 441 a ltoothed "wheel, 'secured "toithe Spur in'ehing with thefintermedi'ate wllieel' 40.

A's the lever 23 must malte it vpossible to bring,` about both afrot'ation of the toothed'i,V

rix'n 82a, and a rotation 'ofl.the"toothed lrirn 32h through 'the intermediary'. of the Itoothed wheels '255er 2511,3it is necesefaryto provide in addi'tion 'fto the'` 'arrangement 'jshovvnk in i F ig. '8, "anotl'i'er device for enabling either the 'toothed Vv'vheel f2.5? or' the toothed wheel 25131150 nbeuipe'rated at Vwill by-nie'ans ofthe lever 23. Thisgd'evi'c'e Consiste 'or a rotatable and longitudinally adjustable "Spindle 4L2 coupled t0 thelever 23; the saidfvepindle'is a'cljustably mounted f in a 'rotatable bearing part '43 "ofthe lever 28 iand provided 'with a-"lon'gi-tudinal '/s'et 'ot teeth 45t with `which' engages lfa "toothed k'quadrant'v 45 lsecured to` die liever A23. According es f the lever P23 is` turned lto the iside, 4or Info-ved upwards ort downwards, :the lspindle '42 fwill b'e f rotated vor *I now'fe'd longitudinally. y [The frotation" ot f the "pindlew`42fis transmitted #to a toothed Y quadraifit ...46, through fthe hub *orf "which p'a'eses the Spindle fin "question Twhich can move fin" it `in fthe longitudinal' direc-.-

the spindle2?v V and carrying the planetary wheel 24arotatable on a pin orjournal. '].`-he -l 'ispindle `4L2 is provided 'at its upper end f l withround teeth 48 whichv engager with f v spur wheel 49v mounted on a pin 50 which;

tion.k 7"' rllhetootliedquadrant 46 meshes with a y'toothed quadrant 47 ,mounted loosey on i w carries a pinionvl meshing yWith a`4 toothed `quadranti 52 which, lilefthe. toothed: 'quadrant 47-is loosefon the spindle 27' and; car

- ries the planetary wheel 24J.

y, It is -y accordingly possible', lby operating 'fthe l-lever 23, to operate at will both the yplanetary tvb/e124a and the planetary iwheel 24F, land through the same,inv the s ame'wayv asexplained with reference to Figure 3, the

-'fmovabletoothed rims' 32 and 32",` and throughthe latten# the motorswitches 36L and3t-v v Y .y

From the constructive point ofvview, the

only difference from Figure 3 is that the movabletoothed rims"32n,`32b, unlike the i. v toothed rim 32 of Figure. 3, are Vprovided yfio with `innerteeth instead of outer ones. the fixed toothed rim39, in the 'same wayy as inthe vconstruf'ztion in Figure 3, has retained inner teeth, a device is required for lensuring rotation in the vopposite directionr of the wheely pairs yof `the planetary wheel geen@inountedr on the spindle 27. This ob- Y ject' isattained by inserting the -toothed wheel 4 0 and the toothed rim 21V securedy to the spur'wheel 30.. It must be also pointed out that the toothed wheels 26a, 2Gb of the ,twoplanetary wheel gears'are combined to a single toothed 1 body.l l

' yWhat claim is v 1. AA periscope structurepartieularly for submarines 'comprising a bed secured tothe p'eriiscope.- carrier suchasa 'submarine a casing rotatably mounted lfon said Ibed about a vertical axis and provided with the eyepiece yof the instrument,v a driving' shaft iiiouted. rotatablylwithin said bed, a tube t lilreinember provided'with a lightgadmissionjopening and telescoping within saideye-pieee` carrying 'Y casing,v a f Vgear connectingjsaid vdrivingshaft with said rotatable casing `'and withfsaid telescopic tube said gear comprising' f, toothed wheels loosely mounted on their axles and adapted to'freey l ly rotate thereonnn turning of said rotatable casing.-

2. Periscope structure particularlyfA` for ysubmarines comprising a bed provided'` with a toothed rimthe'bedsecured toy the perif` Y scope carrierfor boat, a casing :carrying the ofv lthe instrument rotatably lelevating shafty member rotatably mounted within said rotatable; casing at right angles"l to the driving shaft and in operative' 'con-f nection with the telescopic tube the elevating .shaft member carrying sets of gears loosely mounted on shafts crossing eaoh other atright angles and constituting gear driving'shaft to `the telescopic tube.-

A periscope vstructure particularly for submarinescomprising a bed'providedwith Aa toothed rim tlie'bed seeured tothe pei-'i- `scope carrier or boat, a casingfcarrying the 2 yeye-piece of the instrumentlrotatably mounted on said bed about a vertical axis a tube provided with thelight admission opening axially shiftable adriving shaft mount* ed rotatably within said bed and carrying a toothed gear concentric to tlietoothed riin of-the bed and to the aXis ofrotation' of the casing, an elevating; shaft member rotatably `connectionl with each other; `and 'with` the f toothed gear on the driving shaft andthe toothed rim on the bedsaid sets/ofl gears adapted to transmit movement frein/ the sa 'f mounted. withinsaid rotatable 'casing atp-L right angles to' the driving shaft and inA operative connection withtlietelescopic tube v lthe elevating shaftineinber provided ywith two axlejournals intersecting-.the elevating shaft at right angles, each 0f the tvvoaXle journalscariying agear wheel,y thegears being of identical structure the elevatingy shaft oarryingtwofgear members'each provided i *i with two toothed rims, one rim ofieach gear member inv mesh with the two'` gear .wheels on the axlejournals ofthe elevating shaft 'f and the otherrim of the one gear member with lthe gear Wheel onthe driving'shaft and 'that of the second gear Vmember with the toothedy rim on. the `b ed,''the'. numbers of teeth of the gear wheel Von the driving shaft and on' the rim ofthe instrument bed being so calculated that vthe ratios of these teeth numbers to thenuinbers of the .teeth ofthe gears engaging therewith are the y, saine for each meshing-pair of gears. A v

4. A periscope' structure partieularly for submarines comprising a bed secured to the boat, an ocular casing rotatably Ii'iountedv on said bed about a vertical "axis,y a drive shaft mountedv rotatably .withinA saidv bed concentricl to rthe axis kof `rotation of said` ocular easing", a telescopic tube provided witli'gthe light admission opening j shiftable within-- said vocular casing along an .axis coinciding with the axis vof rotation of the casing, a: Y

gear lconi'iecting said driving shaft kwith said rotatable casing and. telescopic tubey allowing shiftingl'of the telescopic tube yin'- v, i*

les

rotary casing andi viceversa an electric` dependently afromy rotary ymovement y of the switch firmly mounted on the boatadapted to start and to stop actuation of said driving` shaft, an actuating vmeehanisnifor said lswitch comprising a hand 'o'perablejshaft 1in I carrying :two toothed Wheels ia f-toothed lrim h imly mounted on the boat and a further toothed rim. .rotatablg7 Amounted o n f the boat said tivo toothedrims meshing each Withone yof. said toothed `Wheels Aand lconcentric f-to the axis of rotation of the ocular casing" the rotatable toothedjrim.coupled with Tthe switch, la gear connecting the two toothed rims. ,comprising the :two `@toothed `wheels on Said yoperable shaft allowing rotation ofsaid l.ocular.casing Without rotation ofithe rotat able toothed rim, said last named toothed trim operable only by said hand Iopera-.ble shaft.

.5. A periscope 4structure particularly for submarines comprising a bed secured to -tbe boat, .an ocular casing rotatably counted on said bed about a vertical-axis, a drive shaft vmounted rotatably VWithin said lbed concen'- ,tric to .the axis of rotation of said ocular casing, a telescopic tube provided With-,the light admission opening rshiftable Within .said ocular casing along anaxis coinciding With the axis of rotation of lthe casing,-a

gear connecting said driving sha-ft lwith saidV rotatablevcasing and telescopic tube an electric switch rmly @mounted on the fboat adapted tocontrol current supply toa motor lfor rotating said rotatable easing anactuat- 'ing mechanism 'for sa-id switch oomprisinga handoperable' shaft carrying two toothed wheels a toothed 4rimLiirmly `mounted `0n lthe boat and a further toothed rim rotatably mounted on the boat, the two toothed rims meshing each with one of said toothed' Wheels and concentricftothe axis oit rota-tion' of the ocular casingfthe rotatable toothed rim coupled with the switch a gear connecting the two toothed rims comprisingthe two toothed Wheels on said hand operable shaft Aallowing rotation of said, ocular casing vWithout vrotation of the rotatable toothed rim said lasts named toothed rim operable only said vhand operable shaft.

v6. A perliscope structure particularlylfor submarines comprising a 'bed securedto the boat. an ocular Acasing ,rotatably mounted .on

said bed about a vvertical axis, a `drive shaft mounted rotatably Withiny saidibed concentric yto the axis' of rotationof lsaid ocular casing, a telescopiotube provided with the light admission opening shittable- Within said ocular casing along an axis .coinclding with the axis of Vrotation 'of the cas toothed Jr'iin '-'rotatab'ly mounted y on the boat said two fteethed rims mes-hing eachF-vvith g v'one otsaid toothed-Wheelsfand concentricto `the axiso-rotation of the ocular casing, the

rotatable `toothed iiimfeoup'led with the switchtlieniheel mfeshi-i-ig'; Awith Athe rotatable s toothed rimifirinlymountedon the handoperablef sha ft and the -ii-'heel meshing -@Wit-h the 'fixed rim:loosely^n'iountedxthereon, ,a plane tary gear comprising-two bevel Wheels'one' Wheel firmly. connected yWith tha-txgear Wheel meshing ivithfthe saidixed rimand planevrtary Wheel meshing 'Withfffsaidv tivofbevel Wheels and loosfely monnted onthe operating handle -for said shaft *mounted* OrbeiLg oscilla-ted about said shaft.'

7. A i lsubmarines comprising afbedsecured to :thel boat, an ocular casing rotatably mounted. ,Ohk said .bed about a verticalaXis, a drive shaft' mounted rotatablywithin said bed concen-` tric' "to Lthe .axis ,of rotation `vof saidocu'lar casing, a telescopic tube provided with thef light admission` opening shifta'ble within -i. .saidocular casing along ai; axis coinciding Witlnthe` axis of rotationof lthe "casing, `ja gear .connecting saiddriving shaftv with lsaid rotatable casing and telescopic Itube 75 iirmlyrandone loosely'mounted.on-said.hand n operable sha-'ft *the loose'lymounted/bevel,

periscope .struc-ture :particularly ryfor "i i allowing shifting of the telescopic tube in`r y dependentlyjfrom trota-ry movement of 'thef 5 the .one adapted to start `and to'v` stopactu'atioll Q said driving shalt` for axially` 'f shifting the telescopic-tube of the finstrumentsand the other t0, Control cu'iLrentjsupply 'toa device :tor rotating the @pillar ease ing one lined and two rotatable'toothed'rms c 'concentric'to vthe 'axisof rotation 'of the' ro-j "tatable .Casing-the .rotatablextoothed frime-V eac'h ,Coupled with @a separatefsivth Shaft Carrying .three 'toothedl wheefls'eaeh in .mesh .lo

vwith one 'efgsaid threat() ld'rins`a-hand. operable train of gearsbet Gentile toothed 1` Wheelfmeshing with tlieaiiijed toothedffrim and each toothed: Wheel meshing with the 'io-v p tatable' ltoothed ',rimjs, `,the gearlings' allowing .rotation of the `,o cularcasing Without rota.-

ttion' off therotatable toothed rims.

.8... AperiScQpe structure"narticulally, fr

Submarines@tunisina a bedsecard: t the i 'be t., an dollar @asingrOtatablymounted on said bed-about vetealaris, drive .Shaft wanted rotatably Within' saidbied' comen? trie t@ the' aXSf @flotation `.off said-ocular light vadmission opening shiii'tableflwithin said ocular casing along an aXi's coinciding with the axis of vrotation of the casinggfa r gear connecting said driving shafty with said rotatable casing andtelescopic tube allowing shifting of the telescopic tubeindepen- '3.30'.

dently from rotary movement ofthe rotary casing and vice two electric switchesirinly mounted on the boat theone, adapted' I vto start and to ystop actuation of said driving shaft lfor, axially shitting the telescopic tube of the instrumentxand the other to control .L .'r Current supplyto` a' device vfor rotating-,the

ocular casing vone Vfixed and two rotatable 'y toothedfrims concentric to the axis of rotation'ot the .rotatable casing the rotatable NJ d' toothed rims each coupledv with-a separate switch, a shaftcarrying three toothed V wheels each 'in mesh with one otsaid three'toothed"y rims, trains ofgears. between, theV toothed submarinescomprising a vbed secured'to the i boat,l an ocular .casing rotatably :mounted j' fon said be'dwabout apvertical axis,y a drlve i lshakftv mounted rotatably withinsaidl bed concentric tothe yaxis of, rotation ot said ocular c'as'1ng,f'al/telescopic tube provided l 30"` within said ocular casingualongwan axiscowit-h the light admissionopening-'shiftable incidingvwith the vaxis oforotation of the casingfand telescopic tube allowing shitting v of thejteles'copic.tube independently `from @rotary movement 'of .the rotary casing and vice. versa two electric' -vswitches {tirmly I; lnoimtedony the boat the one adapted vtcyst'art andltov4 stop actuation of said driving shaft y.ffvo'r axially n shittingy the telescopic tube. of

'the instrument and the other to controleurrent supply? to a device for rotatingthe ocularcasing gone liXedfandtwoy rotatable toothed rims concentric tothe .axisof rota'- tion ofi theg-rotatable,casinggthe rotatable toothed rims each coupled withawseparat'e switch; aeshaft carrying three toothed wheels eachingme'sh-'with .,onefof said three toothed rims,y trainsjo'f ygearsbetween the'` toothed "yingy an` actuating device Jforsaid rod com-y prising afhandlejadapted rto be'fmanually -v l Q wheel meshing with thel fixed toothed rim' 'and' each of thetwo toothed wheels'meshing o y'with the j two rotatable 4toothed rims] the" Ltminsof` gearfbetween-the saidltwo sets of toothedjwheels ,having a ycommon element 'i formed byf an yaxially'sl'iiftable and rotatable `rod providedfwith a toothed rack and with a toothed; segment* forming connection with thefseparatedfportions of thetrains of gearrotation of l operated to axially shift it Ola-t0y rotate *it about its axis.

yl0. A periscope structure vparticularly for l ysubmarines comprisingA a bed secured to the boat7 lanocular` casing rotatably mounted on l said bed about` a vertical-axis, a' drive shaft .,mounted rotatablywithin said bedy concentric to the axis of rotation ofsa-id.'ocular.y casing,`y a telescopic tube'provided with the'.l light admission openingv shiftable within' i' "said ocular lcasingalongvan axis coinciding with the axis of rotation of thecasing, a gear connecting said driving shaftwith saidl rotatablel casingand telescopic tube allo-w- ,ing shifting ot `the 'tellescopic tube tinde.: ,pendentlydirom rotaryl movement yof rthe rotary casingand vice versa two electric ,l switches 'firmlymounted on the boat' the one adapted to 'start and to lstop actuationlot said driving shaftl for axially `shifting ther A' sol telescopic tube-of the instrument andthey otherv toy control, currentV supply to a device'4 for rotating the ocular casingl one fixedv and f i two rotatable toothed rims concentric to vthe axis of rotation of the rotatable casingfthe rotatable toothed rims each coupled with a toothed wheels meshing' with the two" rotat- Vseparate switch7 a shaft:1carryingv-A threel toothed wheels each in meshjwithzone lotg f ysaid three toothedgrims, trains lot gears bef ytween the toothed wheelmeshing with the ixed toothed rim and, each of; :the-two'o V able toothed rims,.the trainsof gears comprisingytwo planetary .gears connected inf seriefscontaming three bevel wheels, mounted co-axially to the shaft carrying the said three V'toothed Vwheels and V`two, kplanetary wheels each rotatable on'fa separate carrier oscillatably mounted .on said lshaft 'each connectingntwo` of said three;vr bevel wheels the "middle bevel lwheel being compound. and in operatiwe connection with lboth the planet` ary wheels and each of the twoouter bevel wheels irinly connected with one of the" twoy toothedwheelsmeshing with the t'Worotat*- C v l' fable rims [al handle operablel` indifferent paths of movement adapted to -actuateat` will depending on its path o'tfmovement the one or lthe otherxtrain of gearing, .the

.gearings `allowing rotation `of the locular casino without rotation jotv the rotatable toothed rims. f

testimony whereof I havesigned ythis j speciicationin the presence of two subscrib ing witnesses.y *y f JULES HUMBRECH'I.44 Witnesses; g j HERMANN REIsING, JOHANN Born/0N. 

